Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Greer, MD, PC

Organization Internal Medicine Physician · NPI 1578674917

William Greer, MD, PC is an Internal Medicine Physician in Paoli, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2006.

Licensed in
PA
In the registry since
2006
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

21 Industrial Blvd Ste 200
Paoli, PA 19301-1610
Phone: (610) 651-0370
Fax: (610) 651-7758
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD056544L (PA)

Record details

NPI number1578674917
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official William Greer — President · (610) 651-0370
Other names William R. Greer, M.D., P.C.
NPI enumeratedAugust 31, 2006
Last updated in NPPESDecember 31, 2012
Mailing address21 Industrial Blvd, Suite 200, Paoli, PA 19301-1610

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